body {
  margin: 0px;
}
.modify-box {
  height: 100vh;
  width: 100vw;
  position: fixed;
  left: 0px;
  top: 0px;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
}
.modify-box > div {
  background-color: #fff;
  padding: 1rem;
  border-radius: 1rem;
}

.myimg {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  padding: 0.2rem;
  border: 1px solid #dcdcdc;
  border-radius: 50%;
}
.myimg img {
  border-radius: 50%;
  display: block;
  width: 100%;
  height: 100%;
}
